diff --git a/rules/postprocess.smk b/rules/postprocess.smk
index 1b188829..6d239a54 100644
--- a/rules/postprocess.smk
+++ b/rules/postprocess.smk
@@ -156,6 +156,7 @@ rule make_summary:
         foresight=config_provider("foresight"),
         costs=config_provider("costs"),
         snapshots=config_provider("snapshots"),
+        drop_leap_day=config_provider("enable", "drop_leap_day"),
         scenario=config_provider("scenario"),
         RDIR=RDIR,
     input: